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How are Unacceptables and Must-Haves detected/proposed by which algorithm?

Conducting an ACBC investigation, respondents will be asked about unacceptable and must-have features based on choices the Screening Section.

I am interested in how exactly the suggested unacceptable/must-have levels are derived? Which algorithm is used for this?

(I am aware of the design algorithm for creating near-neigbor concepts based on the BYO, but here I would find out about the mechanism behind the identification of must-haves/unacceptables).
Thanks in advance!
asked Oct 8, 2019 by Ben

1 Answer

0 votes
We simply look at which levels are included in concepts this respondent marked "a possibility" vs. "not a possibility".   For example, if a respondent never says a "red" concept is "a possibility," then we suspect "red" may be an unacceptable level.  We then ask respondents in a "unacceptable" probing question if indeed "red" is an unacceptable level.  Only if the respondent confirms the rule do we take "red" as unacceptable.
answered Oct 8, 2019 by Bryan Orme Platinum Sawtooth Software, Inc. (201,765 points)